He killed President Abraham Lincoln (April 14, 1865).
He hid in a barn and refused to be taken alive, so they set fire to the barn (April 26, 1865).
The FBI (50 years later) were not positive the burnt body was actually, Booth.
Dr. Samuel Mudd (a relative of newscaster Roger Mudd) set Booth's broken leg, unaware he committed the assassination.
He unknowingly caused the coincidental list of the Lincoln-Kennedy assassination.
His initials JWB were tattooed on the back of his left hand.
He was an alcoholic.
He was arrested for making anti-government remarks in St. Louis (1862).
He was pro-confederacy.
He was a racist stating 'This country was formed for the white not for the black man (1864).'
He originally planned to kidnap President Abraham Lincoln for exchange for Confederate POWs.
After shooting Lincoln, he stabbed Major Henry Rathbone in the left arm, who attempted to capture him.

Why he might not be annoying

He helped create a trend of using middle names to ID killers (see John Wayne Gacy, James Earl Ray, Lee Harvey Oswald, etc.).
He was an accomplished Shakespearean actor.
Some information provided by Tim Howard

For 2019, as of last week, Out of 17 Votes: 58.82% Annoying
In 2018, Out of 393 Votes: 55.47% Annoying
In 2017, Out of 65 Votes: 55.38% Annoying
In 2016, Out of 46 Votes: 60.87% Annoying
In 2015, Out of 859 Votes: 58.44% Annoying
In 2014, Out of 60 Votes: 55.00% Annoying
In 2013, Out of 68 Votes: 61.76% Annoying
In 2012, Out of 66 Votes: 53.03% Annoying
In 2011, Out of 51 Votes: 72.55% Annoying
In 2010, Out of 136 Votes: 68.38% Annoying
In 2009, Out of 117 Votes: 67.52% Annoying
In 2008, Out of 151 Votes: 78.81% Annoying
In 2007, Out of 218 Votes: 75.69% Annoying
In 2006, Out of 312 Votes: 72.44% Annoying
In 2005, Out of 604 Votes: 69.70% Annoying
In 2004, Out of 1014 Votes: 70.61% Annoying
In 2003, Out of 4391 Votes: 70.05% Annoying
In 2002, Out of 2298 Votes: 78.55% Annoying
In 2001, Out of 1984 Votes: 78.23% Annoying